Tape-dispensing device



Nov. 6, 1951 A. P. KRUEGER 2,573,911

TAPE-DISPENSING DEVICE Filed July 12, 1946 v3 Sheets-Shea?l 1 .27 @e 7on l 1 a 33 2a 2g s 3316 i4 Jy l 33 0 12 l? 15 In lll/1111111111117;'lll/111111111111.

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NOV. 6, 1951 A, P, KRUEGER 2,573,911

TAPE-DISPENSING DEVICE Patented Nov. 6, 1951 *PATENT OFFICE vrEinisrNsrNG DEvIo Alfred P; Krilegei",v StratfordgCo'nn.. assigner toDerby Sealersg-.Incorporated corporation of Connecticut f Derby,y Conn.,a

ppiiation .lyia 194e, serial No. 683,247

This invention relates to' tape-"dispensing--iachinas",- and moreparticularly to a machine for dispensing pressure-sensitive tape. Suchtape is usually tacky upon one surface, so that it will ad;

here to' the Surface of an article upon which it 5 placed with a certainamount of pressure. On account of its tacky nature, the serving ordis--v pnsng f tape' f this kind has been attnded with certain problems.v' L Prior machines for dispensing such tape'h'alve generally been oftwo kinds. In one kind of such machines' the tape' is drawn from thesupply'7 roll manually beingengaged With the fingers,- or in someinstances it is drawn fror'the'ffsupply roll by its adherence to afeeding device, usually afeed roll', and is tornen against a xed'severing mea-ns or tear-'orf bladewhen the proper' amount has' beenldispensed.' In the vother typ'e of machines ofY this character) the tapeis drawn from the supply m11 by a feed fou or equivale '20 means towhichv the tape adheres, and is c' off into short lengthsso4 that thes'everng'eperati t is performed me'clianicallyKandl not niianual'ly'.=

devices ofthe latter type', however; itinere' the severing is performedmechani'cally,- usu" ly'vtlie'v 25 severed piece of tape supported upbnspaced surfaces to which it adheres" and mi'ist be pulled' from thesesurfaces. Usa1ly,therefore, there is-` noKV free length' of tapeextending from thenag; y i chine Which may be readily grasped'ar'rd usedwithout con'sictera'ble"inconvenience;n Y ,Y Y, One reason for thedifculty in deliv ringffo'in a dispensing machine a severed: length'of`v tape ofi this kind is` that the tapev is eatery-1 ht weight, andusuallyv must be supportedion th sides' o'f` the severing meansJ dringthe s vef T operation, soY that inj prior' machinesth'esevered end:remained in adhering relation to the .f Y ingdevice and usuallyremainedV a' vpositi'onin which it was incornfenientA for'v the operatorto graspA it and detach it from the feeding means:

I contemplate by the present invention'I a de"- vice which willdispense: agivenj' length of pres-" sure-sensitive tape bydrawing;thetapen from'the supply roll, severing it, anddeliveringthelsevered' portibnlin4 suena' position that it-.mayj bit-reany grasped bythe operatoria ,a ,ma/'nner in w it'- may be convenientlyapplied toapackag'ej' More? over; the length df tape ,which has beensevered Will' b s'uppted byV the 111310111116V nly flts 50 severed end;the remainder" of the seve'r'ec'-lI p tin projecting' frn the'rna'chin,Where; it 'Inyf be freely grasped. u l Y l A .y p thepresjeri" devise,in] contrastanti-1' pr tlcs; thed t'pe" i`s""st`15pd fn` th`e`i`tL I'llIY 22 claims; (01.' iti-'39) o'r vother feeding device, before beingsevered, Whereas in prior devices it was usually held by the feedingdevicev during the severing operation,l and means are provided forgripping the stripped portion of the tape at spaced points in its lengthsothat it may be severed between these points; Also the severed portionof the" tap'e remainsv in adhering relation to one of the grip-v pingmembers so'thatv it is held only at its rear e'nd, the remainder of thesevered strip projecting forwardly from the machine.

- Qneobj'ec't of the present invention is to provide 'a novel apparatusfor dispensing pressure# sensitive tape.

A further object of the invention is to' providel df/ice dispensingpreSSu'I''eSenStive' tape, h that a` predetermined length of tape willbe drawn from a'supply roll, severed, and delivered in a position inwhich it projects from the mahence may be readily grasped bythe r.Anstill furtherobject of the invention is to IiiSr/'ide a device fordispensing pressure-sensitive tape,r which device will draw or feed thetape from' the Ys u'pply roll, strip' it from vthe feedingn'ife'ansLand` then` sever the stripped portion of the tapesb'wthatitWill be readily available for use. A'stillC further object of the'invention is to provideV a device for dispensing Scotch tape such th`the tape will be intermittently drawn from ai 'supply roll, byAthestroke of an oscillating lever one' direc'zi'lion,` by asui'tablefeeding mechanism,

stripped' from the feeding mechanism, and thel stripped portion severedfrom the remainder of supply upon a reverse or return stroke of theleven Y Still another object of the invention is to provide a Imac/.lfiir*1e for dispensing Scotch tapey as described4 above, whereinthelength of the strip severed from' the supplyfrollv of tape may bevaried within reasonable limits;

V`VTo these and other endsv the invention consists in the novel featuresand combinations of parts to be hereinafter described and claimed.

Intheaccompanying drawings:

Fig. 1 is a side elevational view of a tap'edispensingdevice embodying'my invention;

Fig, 2 is` a .front elevational view thereof; -1Fig'. 3 isav sectionalview on lineiSL-Zl of Fig. ,l;- Figi. liis' a-sectionalviewon line iA-tV4 of Fig. 3': Fig 5 isa vietv'sim'ilarto Fig. lbut showing the par-'tsanother position; T p

Figk 651s' ay sectional View' on line' 5 5 of Fig. 3;V Fig'. 7 is asectional View on line r-i ofFg: 3;'

spaced relation in any convenient manner, such` as by screws I2 andspacing members I v3.

Rotatably mounted in the framemembrs'sis the main shaft I4, androtatably mounted upon this shaft is a sleeve I5 havingV keyedor'secured thereto a gear I6, a feed roll I1, and a ratchet 4 stood fromthe foregoing, movement of the lever 26 in a lcounterclockwisedirection, as shown in Fig. 1, Will serve to rotate the feed roll I1,and thus deliver .tape from the machine. It is contemplated that thelever 26 be moved forwardly a certain distance and then released, sothat it will be returned to its-normal position against the stop 3l bythe spring 28, the lever, therefore, havingan voscillating motion andserving to intermittently feed a length of tape depending upon 1 Itheangle through which the lever is moved. If

desired, stop members (not shown) may be provided to limit the movementof the lever 26 in a Vcounterclockwise direction, and, therefore, limit.the length of vtape dispensed at a single stroke.

' lTtwilllbe understood, however, that, if desired,

wheel I8. As stated, the members I6, I1 land-I3 f are secured to thesleeve so that they will rotate,

therewith.

Secured to the shaft I4 is a pawl carrier I9 (Figs. 3 and 8), and a pawl20 is pivoted to this carrier andadapted to `engage the teeth of theratchet I8. As this pawl carrier is secured to the shaft I4, rotation ofthe latter in a counterclockwise direction, as shown in Figs. 1 and 8,will effect rotation of the pawl carrier and likewise effect rotation ofthe ratchet wheel. As the latter is secured to the sleeve I5, rotationof the ratchet wheel will rotate the sleeve, and, therefore, rotate thefeed roll I1 and the gear I6. It will also be apparent that the shaft I4will have a one-way connection with the ratchet wheel I8, and thatrotation of fthe shaft and pawl carrier in a clockwise direction, asshown in Fgs. 1 and `8, will vnot actuate the ratchet wheel, the pawlriding idly over the teeth of this wheel during such movement. In orderto prevent movement of the ratchet wheel in a reverse or clockwisedirection during reverse rotation of the shaft I4,v

a holding pawl 2I may be secured to the side frame I0 by means of ablock 22, theV holding pawl engaging the teeth-of the ratchet wheel in amanner to prevent clockwise movement thereof.

The shaft I4 projects through the side frame II, and on its projectingend is secured a collar 24 having a hub 25 to which is secured alever'26 and a second grooved collar 21. It will be understood that withthis construction the lever 26 is rigidly secured to the shaft I4, as isalso the grooved collar 21, so that when the lever is drawn to the left,or in a counterclockwise direction, as shown in Fig. 1, the shaft I4will be rotated. A spring 28 is secured at its lower end to a pin 29 onthe side frame il, and secured at its upper end to a ange 36 on thelever 26, the spring being disposed in the peripheral groove of thecollar 21, so that tension upon the spring will tend to rotate the lever26 in a clockwise direction, as seen in Fig. l, so as lto normallymaintain it against an L.shaped stop 3I secured onA the side frame II.

A supply` roll 32 of tape is rotatably supported upon a pin or shaft 33extending between the side plates I6 and I I, the roll being properlypositioned between the plates by spacing collars 34 and 35 (Fig. 3). Asshown more especially in Fig. 4, the supply roll 32 is mounted adjacentthe lower part of the frame, and the free end ofthe tape 36 extendsupwardly therefrom, to be trained about the feed roll I1, previouslydescribed, and, as this roll is provided with a knurled or roughenedsurface, the tape will adhere thereto and be drawn from the supply rollwhen the feed roll is rotated. As will be underrepeated strokes of thelever may be made so that any desired length of tape may be dispensedprior toy the severing operation, which will be hereinafter described.

.The gear I6 meshes With a pinion 3B (Fig. 6) mounted on the side frameAI0, which in turn meshes with a pinion39 secured upon a shaft 40rotatably mounted in the frame members Iii` and II. A pair of toothedstripping wheels 4I and 42 are secured to this shaft, one of thesestripping wheels being'disposed upon each side of the feed roll I1andbeing closely adjacent the lateral surfaces of this roll.v As will beseen from Figs. 4 and 5, these stripping members overlap the forwardedge of the feed roll I1, and, as these members rotate inthe samedirection as', and preferablyV at agreater peripheral speed than, thefeed rollthey serve to strike the lunder or tacky surface of the tapeand strip it from the feed roll, so that it emerges or is directedforwardly of the stripping devices in a freely proI jecting position, asshownrat 43 (Fig. 4).

The severing means for this free end of the tape will now be described.Mounted upon the frame membersl 0 and II are verticallyv extending rails45 and `46 having-oppositely facing guideways 41 and'48 therein slidablymounted in these guideways isa lower gate 49 urged downwardly by aspring 50. Adjacent its upper end this gate is provided with spacedgrippingV members 5I and 52, which normally lie slightly below the pathof the tape as it comes from the stripping members 4I and 42. The reargripping mem.- ber 52 is slotted, as shownat 53 (Fig. 3), to permit theteeth of the stripping wheels to project therethrough. Y

Also slidably mounted in the guideways 41 and 48 is an upper-block 54'having at its lower edge a pair of spaced gripping surfaces and 56,whichsurfaces are adapted to cooperate with the gripping surfaces 5I and52-to grip the tape upon each side of a severing member, as will behereinafter explained.

The block 54 is freely mounted in the guideways 41 and 48, but normallystands in a downward position, shown in Fig..4, due to its weight, itsposition being limited by a screw 57V secured thereto, which screwextends through an openingl 58 in a guide member 59 securedto the frame.

Withinthe space between the upper gripping,

members and 56, a severing knife 60 is secured to the frame in fixedrelation. As shown in'Fig.

2, this knife may be inclined to the horizontal,

of the upper surface of the tape betweenitsedges and prevent the freeend of the tape-from vcurling upwardly toward the upper `gripping member-56 after the. severing operation, so that it cannot 'adhere to thismember and interfere witha subsequent feeding operation.

A lever S3 eXtendst-hrough an yopening (Min the gate49, this lever beingsecured to a shaft V65 rotatably mounted in the frame. A crank arm 66(Fig. 1) is secured to this shaft, and to this crank arm is pivoted at51 -a link 68, the/latter 4being pivoted at 69 to one end of a link 1I),the other end of which is pivoted at 'JI to the frame member I I.

A detent 12 (Figs. 3 and 7) is pivoted at I3 to the rear face of thecollar 24, this detent being adapted to stand normally in the full-lineposition shown in Fig. '7, when the lever 26 is in the position of restshown in Fig. 1, but is moved to the-dotted-line position, .shown inFig. 7, when thelever 26 is moved a sufcient distance in acounterclockwise direction. When the detent 12 has been moved beyond theupper end'of the link 58, it will drop by gravity into a position toengage the latter, as shown in dotted lines in i l 'Fig-7, and will,upon a reverse movement of the shaft I4, carry the link 68 downwardly,as yshownV in Fig. 9, until it rides off the upper corner of this link.

Movement of the link 68 downwardly rocks the `shafts 55, which moves thearm or lever 6,3 up- Upon the wardly, thus raising the gate 49. raisingof the gate, the gripping members.l 5I and 52 engage the Alower' surfaceof the tape and carry the same upwardly against the cooperating grippingsurfaces 55 and 56, and thence, upon continued movement, past the knifeor severing member 6i), so that the tape will be severed between thesegripping members, as shownin Fig. 5. During the latter part of thismovement the block 54 will also be moved upwardly, so that its weightwill bear on the upper surface of the tape, thus gripping the latterfirmly between the surfaces 5I and 55 in front of the knife 6l) and themembers 52 and 55 rearwardly of the knife 60,

f so that the tape will be held firmly on each side Aof the knife.

When the detent member 'l2 rides off the upper edge of; the link 458,'asit is about to do in thle position shown in Fig. 9, the spring 5Bwill'pull the gate 49 downwardly, and restore the lever 63 andassociated parts to their normal positions. As the gate 49 movesdownwardly, it will carry with it the severed portion of the tape 'lli(Fig. 4) 'the extreme rear end of this portion adhering to the fgripping surface 5I and being supported thereby, so that the remainderextends forwardly from the frame ofthe machine and may be readilygrasped by the operator.

It is believed that the operation of the device Will be clear from theforegoing description, but it may be briey described as follows: Thelever 26 vis grasped by the operator and moved in a counterclockwisedirection to feed a sufficient quantity of tape from the supply roll bymeans of the adherence of the tacky side of the tape to the surface ofthe feed roll. The lever will then be'released, to be returned to aposition against the stop 3l by the spring 28, the feed roll being heldagainst reverse movement during the return of the lever by the holdingpawl 2|.

As the tape is fed forwardly bythe feed roll, it,- is stripped from thisroll by' the stripping Wheels `lll and 42, so thatvitlprojects outwardlythrough the guiding stirrup 6I and between the 'upperv and lowergripping members. Presumably the lever 26 will be moved sufficiently farso that the detent 'I2 will ride over the upper edge of the ylink 68 soas to. reachrthe dotted-line position shown in Fig. 7. Upon the returnofthe lever by the spring 28, the shaft 65 will be rocked, thus bringingthe gate i5 upwardly so as to grip the tape between the cooperatinggripping members 5I, 55 and ,52, 55, and then carry the tape upwardlypast the knife 65, where it will be severed. About `this time the end ofthe detent 'I2l rides off vthe upper corner of the link 68, as shown inFig. 9, and the spring 5I! brings the gate 49 and associated` parts backto their position of rest, the gripping surface 5I carrying the severedend of. the tape with it, as shown in Fig. 4. The block 54 will followthe gate 49 downwardly by its own weight asfar as permitted by thelimiting screw 57.

During the Vdownward movement of the gate 49, the tape will adhere tothe gripping surfaces 5I and 52 and be carried downwardly thereby. Theunsevered end of the tape will be stripped from the gripping surface 52by the stripping wheels Vdl and 2.2, and willthen be engaged by theguide stirrup 5I, and prevented from adhering lto upper gripping surface56. This stirrup preferably contacts only the intermediate portion ofthe tape so as not to engage the edges, which may be tacky to someextent. It willbe noted that the gripping surface 5I is of lesser widththan the body yof the gate 39, so that the tape will adhere thereto overa small area only, and thus' may be readily removed therefrom.

While I have shown and described a preferred embodiment of my invention,it will be understood that it is not to be limited to all of the detailsshown, but is capable of modification and variation within the spiritlof the invention and within the scope of the claims.

What I claim is: p

1. A machine for dispensing pressure-sensitve tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, movable stripping means to strip the free end of the tape fromsaid member, severing means,and means to effect relative movementbetween the severing means and thestripped 'portion of the tape to severthe latter.

2. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means toV strip thefree end of the tape from said member,severing means, means to effect, relative movement between the severingmeans and the stripped portion of the tape to sever the latter, andgripping means to hold the stripped portion of the tape during thesevering operation.

3. A-machine for dispensing pressure-sehen tive tape comprisingtapefeeding means includ-k ing'a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,severing means, and means to grip the tape at a, point spaced from theend thereof and to effect relative movement of the tape and severingmeans, to sever the tape.

`4. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from saidmember,severing means, means to effect relative movement between the severingmeans and thev stripped portion ofv the tapete sever the latter, andmeans'to grip and hold the tape on both sides of the severing meansduring the severing operation.

El.V A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means includinga tape-advancing member to Which the tapeadheres, means to strip the free end of the tape from said member, meansfor severing the tape adjacent the rear end of said stripped portion,and means for holding said severed portion adjacent the rear end thereofwith its forward end in a freely projecting position to be grasped bythe operator.

6. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, said member using only the adhesiveness of the tape for drivingengagementI of the tape therewith, means to strip the free end of thetape from said member, and movably mounted means for effecting thesevering of a stripped portion of the tape.

7. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,severing means comprising a fixed blade, and means to move a portion ofthe tape against said blade to sever the tape.

8. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the-tapeadheres, severing means, and means to strip the tapefrom said advancingmember and move it against said severing means to sever a lengththereof.

9. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, movable stripping means to strip the free end of the tape fromsaid member, movably mounted means for effecting the severing of astripped portion of the tape, and a manually actuatable member foroperating said feeding means, stripping means and severing means.

10. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,movably mounted means for eirecting the severing of a stripped portionof the tape, and a manually actuatable member for operating said feedingmeans, stripping means and severing means, said memberbeing-oscillatable in forward and reverse directions, vsaid feedingmeans being operated by movement of the lever in one direction and saidsevering means by movement of the lever in the reverse direction.

l1. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,severing means comprising a fixed blade, and means to move a portion ofthe tape against said blade to sever the tape, said last-named meanscomprising gripping members engaging opposite sides of the tape.

12. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,severing means comprising a fixed blade, and means to move a portion ofthe tape against said blade to sever the tape, said last-named meanscomprising gripping members engaging opposite lsidesv of the tape onboth sides ofthe blade.

13. A machine for dispensing pressure-sensitive tape, comprisingtape-,feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,severing means comprising a xed blade, means to move a portion of thetape against said blade to sever the tape, said lastnamed meanscomprising gripping members engaging oppositeY sides of the tape, and agripping member on the tacky side of the tape supporting the severedportion of the tape after the severing operation, with a free end of thetape projecting therefrom.

l14. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to whichy the tapeadheres, means to strip the free end of the tape from said member,spaced movable members between vvhich the stripped end of the tapeprojects, means to effect relative movement of said members to grip thetape therebetween, and means to sever the tape while so gripped.

15. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,severing means, movable members between which the stripped end of thetape emerges, means to effect relative movement of said members to causethem to grip the tape therebetween, and then to move both members tosever the tape while so gripped.

16. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,severing means, movable members between which the stripped end of thetape emerges, means to effect relative movement of said members to causethem to grip the tape therebetween, and then to move both members tosever the tape while so gripped, each of said members having grippingsurfaces on both sides of the severing member.

17. A machine for dispensing pressure-'sensitive tape, comprisingtape-feeding means including a tape-advancing member to Whichthe tapeadheres, means to strip the free end of the tape from said member,severing means, movable members between which the stripped end of thetape emerges, means to effect relative movement of said members to causethem to grip the tape therebetween, and then to move both' members tosever the tape while so gripped, and one of said members carryingguiding means to guide the unsevered end of the tape between thegripping members.

18. A machine for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, means to strip the free end of the tape from said member,severing means, means to effect relative movement between the severingmeans and the stripped portion of the tape to sever the latter, andmeans to move the unsevered end ofV the tape away from the severingmeans'after the severing operation.

19. A machinev for dispensing pressure-sensitive tape, comprisingtape-feeding means including a tape-advancing member to which the tapeadheres, movable stripping means to strip the free end of the tape fromsaid member, severing means, means` to effect relative movement be- 9tween the severing means and the stripped portion of the tape to severthe latter, and guide means contacting the non-tacky side of the tapeintermediate the edges thereof to guide the end of the tape strippedfrom the feeding means.

20. A machine for dispensing pressure-sensitive tape comprisingtape-'feeding means, actu.- ating means for the feeding means, asevering member, a pair of opposed gripping members to engage oppositesurfaces of the tape on one side of the severing member, a second pairof opposed gripping members to engage opposite surfaces of the tape onthe opposite side ofy said severing member, means holding said grippingmembers out of engagement with the tape during the operation of thefeeding means, `and means operated by said actuating means to effectrelative approaching movements of said opposed members to grip the tapetherebetween and to'eiect relative movement between the tape and thesevering means to sever thetape between said pairs ofgripping members.

21. A machine for dispensing pressure-sensitive tape comprisingtape-feeding means, a severing member to sever a piece from the free endof the tape, gripping means to engage both surfaces of the tape adjacentthe severing member during a severing operation, means to hold saidgripping members out of engagement with the tape during a feedingoperation, and'means 10 to effect gripping of the tape by said membersand to effect relative movement between the tape and severing member. y

22. A machine for dispensing pressure-sensitive tape comprisingtape-feeding means, severing means, opposed gripping members engagingopposite surfaces of the tape at spaced points along its length to holdit between said members, means normally holding said gripping membersout of engagement with the tape, an oscillatable member having forwardand return strokes connected to said feeding means to actuate the latterupon the forward movement of said oscillatable member, and saidoscillatable member being operatively connected to said gripping membersto move them into gripping relation with the tape upon a return movementthereof.

ALFRED P. KRUEGER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

